AutoCodes – Chevrolet – P214F Chevrolet

P214F Chevrolet Code - Reductant Heater 1 Current Too High

Quick Answer

The Selective Catalyst Reduction (SCR) system reduces Oxides of Nitrogen (NOx) emissions by injecting a metered amount of Diesel Exhaust Fluid (DEF) or reductant into the exhaust gas stream entering the SCR catalyst. Common causes include Faulty Reductant Heater 1, Reductant Heater 1 harness is open or shorted, Reductant Heater 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P214F Chevrolet indicates Reductant Heater 1 Current Too High.
Common causes: Common causes include Faulty Reductant Heater 1, Reductant Heater 1 harness is open or shorted, Reductant Heater 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 740

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P214F Chevrolet Description

The Selective Catalyst Reduction (SCR) system reduces Oxides of Nitrogen (NOx) emissions by injecting a metered amount of Diesel Exhaust Fluid (DEF) or reductant into the exhaust gas stream entering the SCR catalyst. Within the SCR catalyst, the reductant reacts with the NOx to form nitrogen, carbon dioxide, and water vapor. Upstream and downstream NOx sensors provide the Engine Control Module (ECM) with engine-out and tailpipe-out NOx levels in Parts Per Million (ppm). The ECM then adjusts the amount of reductant injected upstream of the SCR based on the NOx concentration. Engine-out NOx levels as measured by NOx Sensor 1 will either increase (high ppm) or decrease (low ppm) the amount of reductant injected. The NOx concentration as measured by NOx Sensor 2 provides the ECM with both an indication of the NOx conversion efficiency within the SCR as well as confirming the proper operation of the reductant system. The Diagnostic Trouble Code (DTC) will be set when the Glow Plug Control Module (GPCM) detects a heater short circuit by detecting a high current in the heater.

OBDII Code P214F Chevrolet - Reductant Heater 1 Current Too High - AutoCodes.com — P214F Chevrolet Code - Reductant Heater 1 Current Too High

What does this mean?

What are the Possible Causes of the DTC P214F Chevrolet?

Faulty Reductant Heater 1
Reductant Heater 1 harness is open or shorted
Reductant Heater 1 circuit poor electrical connection
Faulty Glow Plug Control Module (GPCM)

How to Fix the DTC P214F Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P214F Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Get the P214F Chevrolet code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P214F Chevrolet Code

1. What are the common symptoms of OBDII code P214F in a Chevrolet related to the Reductant Heater 1 Current Too High?

The common symptoms include the check engine light coming on, reduced engine performance, and potential rough idling.

2. What are the possible causes of OBDII code P214F in a Chevrolet indicating Reductant Heater 1 Current Too High?

Possible causes may include a faulty reductant heater 1, wiring issues, a defective reductant heater control module, or a software issue.

3. How can I diagnose OBDII code P214F in a Chevrolet related to Reductant Heater 1 Current Too High?

Diagnosis typically involves using a scan tool to read the code, checking the reductant heater 1 and related components for continuity, and inspecting the wiring for any visible damage.

4. Can I drive my Chevrolet with OBDII code P214F indicating Reductant Heater 1 Current Too High?

It is generally not recommended to drive the vehicle with this code active, as it can lead to reduced fuel efficiency and potential damage to the emissions system.

5. How can I repair OBDII code P214F in a Chevrolet for the Reductant Heater 1 Current Too High?

Repair may involve replacing the faulty reductant heater 1, repairing or replacing damaged wiring, resetting the control module, or updating the software.

6. Is it safe to reset the OBDII code P214F in a Chevrolet related to Reductant Heater 1 Current Too High?

Resetting the code may temporarily turn off the check engine light, but it is crucial to address the underlying issue causing the code to prevent further problems.

7. How much does it cost to repair OBDII code P214F in a Chevrolet indicating Reductant Heater 1 Current Too High?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P214F in a Chevrolet for the Reductant Heater 1 Current Too High?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code themselves, especially if it involves simple tasks like checking and replacing fuses or relays.

9. How often does OBDII code P214F in a Chevrolet appear due to Reductant Heater 1 Current Too High?

The frequency of this code occurrence can vary, but it is not uncommon in Chevrolet vehicles equipped with a reductant heater system.

10. Will OBDII code P214F affect the overall performance of my Chevrolet related to Reductant Heater 1 Current Too High?

Yes, this code can impact the vehicle's performance by triggering the check engine light, potentially causing reduced engine power, and affecting the emissions system's efficiency.